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<tr><th colspan="5" align="center" valign="bottom">PostgreSQL 8.2.3 中文文档</th></tr>
<tr><td width="10%" align="left" valign="top"><a href="catalog-pg-statistic.html" accesskey="P">后退</a></td><td width="10%" align="left" valign="top"><a href="catalogs.html">快退</a></td><td width="60%" align="center" valign="bottom">章43. 系统表</td><td width="10%" align="right" valign="top"><a href="catalogs.html">快进</a></td><td width="10%" align="right" valign="top"><a href="catalog-pg-trigger.html" accesskey="N">前进</a></td></tr>
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<div class="SECT1"><h1 class="SECT1"><a name="CATALOG-PG-TABLESPACE">43.32. <tt class="STRUCTNAME">pg_tablespace</tt></a></h1><a name="AEN64853"></a>
<p><tt class="STRUCTNAME">pg_tablespace</tt> 存储有关可用的表空间的信息。表可以放置在特定的表空间里，以帮助管理磁盘布局。</p>
<p>与大多数系统表不同，<tt class="STRUCTNAME">pg_tablespace</tt> 在一个集群中的所有数据库之间共享：每个集群只有一份 <tt class="STRUCTNAME">pg_tablespace</tt> 的拷贝，而不是每个数据库一个。</p>
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<p><b>表43-32. <tt class="STRUCTNAME">pg_tablespace</tt> 字段</b></p>
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<tr><td><tt class="STRUCTFIELD">spcname</tt></td><td><tt class="TYPE">name</tt></td><td>&nbsp;</td><td>表空间名字</td></tr>
<tr><td><tt class="STRUCTFIELD">spcowner</tt></td><td><tt class="TYPE">oid</tt></td><td><tt class="LITERAL"><a href="catalog-pg-authid.html"><tt class="STRUCTNAME">pg_authid</tt></a>.oid</tt></td><td>表空间的所有者，通常是创建它的人</td></tr>
<tr><td><tt class="STRUCTFIELD">spclocation</tt></td><td><tt class="TYPE">text</tt></td><td>&nbsp;</td><td>表空间的位置(目录路径)</td></tr>
<tr><td><tt class="STRUCTFIELD">spcacl</tt></td><td><tt class="TYPE">aclitem[]</tt></td><td>&nbsp;</td><td>访问权限；参阅 <a href="sql-grant.html"><i>GRANT</i></a> 和 <a href="sql-revoke.html"><i>REVOKE</i></a> 获取细节。</td></tr>
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